ComplexNumericRTable.select - Maple Programming Help

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ComplexNumericRTable.select

access a ComplexNumeric stored in the ComplexNumericRTable

 Calling Sequence ComplexNumeric select( int index[] ) throws MapleException

Parameters

 index - index of the entry to select

Description

 • The select function returns the ComplexNumeric indexed by index in the ComplexNumericRTable.
 • The index parameter is an array of integers, one for each dimension of the ComplexNumericRTable.  Each integer must be within the bounds determined by lowerBound and upperBound.  The index for dimension $i$ is stored in the array at position $i-1$.

Examples

 import com.maplesoft.openmaple.*; import com.maplesoft.externalcall.MapleException; class Example { public static void main( String notused[] ) throws MapleException { String mapleArgs[]; Engine engine; ComplexNumericRTable cnRt; ComplexNumeric cn; int index[]; mapleArgs = new String[1]; mapleArgs[0] = "java"; engine = new Engine( mapleArgs, new EngineCallBacksDefault(), null, null ); cnRt = (ComplexNumericRTable)engine.evaluate( "Array( 1..2, 1..2, [[1+I, 2+2*I],[3+3*I, 4+4*I]], datatype=complex(sfloat) ):" ); index = new int[2]; index[0] = 1; index[1] = 1; cn = cnRt.select( index ); System.out.println( cn ); index[0] = 1; index[1] = 2; cn = cnRt.select( index ); System.out.println( cn ); index[0] = 2; index[1] = 1; cn = cnRt.select( index ); System.out.println( cn ); index[0] = 2; index[1] = 2; cn = cnRt.select( index ); System.out.println( cn ); } }

Executing this code produces the following output.

 1.+1.*I 2.+2.*I 3.+3.*I 4.+4.*I